añadido product_secuence y product_code_unique para crear secuencias de productos por categoría

related 6

product_code_unique/hook.py

@@ -0,0 +1,17 @@
+# Copyright (C) 2019 - TODAY, Open Source Integrators
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+
+def pre_init_product_code(cr):
+    cr.execute("""UPDATE product_product
+        SET default_code = 'DEFAULT' || nextval('ir_default_id_seq')
+        WHERE id in (SELECT distinct(pp.id)
+                     FROM product_product pp
+                     INNER JOIN (SELECT default_code, COUNT(*)
+                                 FROM product_product
+                                 GROUP BY default_code
+                                 HAVING COUNT(*)>1
+                                 )pp1 on pp.default_code=pp1.default_code
+                                  or pp.default_code is NULL
+                                  or LENGTH(pp.default_code) = 0)""")
+    return True